TencentDDNS(DnsPod) openwrt plugin for dualwan edition(腾讯DDNS-DNSPOD 双wan口版本运行脚本)

tecentddns

#!/bin/sh

NAME=tencentddns
log_file=/var/log/$NAME.log

console_log() {
	echo "$DATE [TENCENTDDNS] $@" >> $log_file
}
uci_get_by_name() {
	local ret=$(uci get $NAME.$1.$2 2>/dev/null)
	echo ${ret:=$3}
}

uci_bool_by_name() {
	case "$(uci_get_by_name $1 $2)" in
		1|on|true|yes|enabled) return 0;;
	esac
	return 1
}

intelnetip() {
	tmp_ip=`curl -sL --connect-timeout 3   ns1.dnspod.net:6666`
	if [ "Z$tmp_ip" == "Z" ]; then
		tmp_ip=`curl -sL --connect-timeout 3 members.3322.org/dyndns/getip`
	fi
	if [ "Z$tmp_ip" == "Z" ]; then
		tmp_ip=`curl -sL --connect-timeout 3 14.215.150.17:6666`
	fi
	if [ "Z$tmp_ip" == "Z" ]; then
		tmp_ip=`curl -sL --connect-timeout 3 whatismyip.akamai.com`
	fi
	echo -n $tmp_ip
}

resolve2ip() {
	# resolve2ip domain<string>
	domain=$1
	tmp_ip=`nslookup    $domain f1g1ns1.dnspod.net 2>/dev/null | sed '/^Server/d; /#53$/d' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'`
	if [ "Z$tmp_ip" == "Z" ]; then
		tmp_ip=`nslookup $domain f1g1ns2.dnspod.net  2>/dev/null | sed '/^Server/d; /#53$/d' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'`
	fi
	if [ "Z$tmp_ip" == "Z" ]; then
		tmp_ip=`nslookup $domain 114.114.115.115 2>/dev/null | sed '/^Server/d; /#53$/d' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'`
	fi
	if [ "Z$tmp_ip" == "Z" ]; then
		tmp_ip=`curl -sL --connect-timeout 3 "119.29.29.29/d?dn=$domain"` | tr ";" "\n"
	fi
	echo -n $tmp_ip
}

check_tencentddns() {
	ip=$1
	domain="$sub_dm.$main_dm"
	console_log "CheckDdns: domain with ip DOMAIN:$domain, WAN-IP: ${ip}"
	if [ "Z$ip" == "Z" ]; then
		console_log "CheckDdns:ERROR, cant get WAN-IP..."
		echo $rrid_list
		return 0
	fi
	current_ip_list=$(resolve2ip $domain)
	if [ "Z$current_ip_list" == "Z" ]; then
		console_log "CheckDdns:Empty result from resolve2ip DOMAIN:$domain"
		echo $rrid_list
		return 1
	fi

	for current_ip in $current_ip_list; do
		console_log "CheckDdns:Current DOMAIN-IP: ${current_ip}"
		if [ "Z$ip" == "Z$current_ip" ]; then
			rrid=$(query_recordid | get_recordid4 $ip)
			if [ "Z$rrid" != "Z" ]; then
				console_log "CheckDdns:IP dont need UPDATE, RecordID:$rrid, new RecordID List:$rrid_list"
				echo $(pop_record_id $rrid)
				return 0
			fi
		fi
	done
	console_log "CheckDdns:Not found WAN-IP:$ip in DOMAIN:$domain UPDATING..."
	echo $rrid_list
	return 1
}

urlencode() {
	# urlencode url<string>
	out=''
	for c in $(echo -n $1 | sed 's/[^\n]/&\n/g'); do
		case $c in
			[a-zA-Z0-9._-]) out="$out$c" ;;
			*) out="$out$(printf '%%%02X' "'$c")" ;;
		esac
	done
	echo -n $out
}

send_request() {
		curl -s -X POST https://dnsapi.cn/$1 -d "login_token=$ak_id,$ak_token&format=json&"$2
}

get_recordid() {
		sed 's/"records"/\n/g' | sed -n '2p' | sed 's/ttl/\n/g' | sed -n 's/.*"id[^0-9]*\([0-9]*\).*/\1\n/p' | sort -ru | sed /^$/d
}


get_recordid2() {
		sed 's/"record"/\n/g' | sed -n '2p' |  sed -n 's/.*"id[^0-9]*\([0-9]*\).*/\1\n/p' | sort -ru | sed /^$/d
}

get_recordid3() {
		jsonfilter -e "@.records[*]['id']"
}

get_recordid4() {
		jsonfilter -e "@.records[@.value='$1']['id']"
}

query_recordid() {
		send_request "Record.List" "domain=$main_dm&sub_domain=$sub_dm&record_type=A"
}

update_record() {
		send_request "Record.Modify" "domain=$main_dm&sub_domain=$sub_dm&record_id=$1&record_type=A&record_line=%e9%bb%98%e8%ae%a4&value=$2"
}

add_record() {
		send_request "Record.Create" "domain=$main_dm&sub_domain=$sub_dm&record_type=A&record_line=%e9%bb%98%e8%ae%a4&value=$1"
}

del_record() {
		send_request "Record.Remove" "domain=$main_dm&record_id=$1"
}

get_first_record_id() {
		echo "$rrid_list" | cut -d " " -f1
}

pop_record_id() {
		echo "$rrid_list" | sed "s/$1//g"
}

do_ddns_record() {
	ip=$1
	console_log "DNS_RECORD:IP:$ip, RecordIDList:$rrid_list"
	if [ "Z$rrid" == "Z" ]; then
		rrid=$(get_first_record_id)
		rrid_list=$(pop_record_id $rrid)
	fi
	console_log "DNS_RECORD:IP:$ip, RecordID:$rrid, RecordIDList:$rrid_list"
	if [ "Z$rrid" == "Z" ]; then
		rrid=`add_record $ip | get_recordid2`
		console_log "DNS_RECORD:ADD record $rrid"
	else
		update_record $rrid $ip >/dev/null 2>&1
		console_log "DNS_RECORD:UPDATE record $rrid"
	fi
	if [ "Z$rrid" == "Z" ]; then
		# failed
		console_log "DNS_RECORD:# ERROR, Please Check Config/Time"
	else
		# save rrid
		console_log "DNS_RECORD:# UPDATED($ip)"
	fi
	echo $rrid_list
	console_log "DDNS_RECORD: ReturnValue:$rrid_list"
}

clean_log() {
	if [ $(cat $log_file 2>/dev/null | wc -l) -ge 16 ]; then
		rm -f $log_file && touch $log_file
		console_log "Log Cleaned"
	fi
}

do_get_iface_ip() {
	iface=$1
	if [ "Z$iface" == "Zinternet" -o "Z$iface" == "Z" ]; then
		ip=$(intelnetip)
	else
		ip=$(ubus call network.interface.$iface status | grep '"address"' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
	fi
	echo $ip
}

do_iface_ddns() {
	iface=$1
	ip=`do_get_iface_ip $iface`
	console_log "DoDdns:WAN_IF:$iface, IP:$ip, RecordIDList:$rrid_list"
	rrid_list=$(check_tencentddns $ip)
	ret_val=$?
	if [ $ret_val -eq 0 ]; then
		console_log "DoDdns: CheckDdns ret $ret_val, returning"
		echo $rrid_list
		return 
	fi

	rrid_list=$(do_ddns_record $ip)
	echo "$rrid_list"
}

do_cleanup() {
	console_log "DoCleanUp:Start purge dns record"
	query_recordid | get_recordid | while read rr; do
		console_log "DoCleanUp:Clean record $sub_dm.$main_dm: $rr"
		del_record $rr >/dev/null
		timestamp=$(date -u "+%Y-%m-%dT%H%%3A%M%%3A%SZ")
	done
}

check_pre_cleanup() {
	console_log "CleanUpCheck: Check if need clean up all record"
	if uci_bool_by_name base clean ; then
		do_cleanup
	fi
}

[ -x /usr/bin/openssl -a -x /usr/bin/curl -a -x /bin/sed -a -x /usr/bin/jsonfilter ] ||
	( echo "Need [ openssl + curl + sed + jsonfilter]" && exit 1 )

ak_id=$(uci_get_by_name   base key_id)
ak_token=$(uci_get_by_name  base key_token)
main_dm=$(uci_get_by_name base main_domain)
sub_dm=$(uci_get_by_name  base sub_domain)

iface=$(uci_get_by_name   base interface)

DATE=$(date +'%Y-%m-%d %H:%M:%S')
timestamp=$(date -u "+%Y-%m-%dT%H%%3A%M%%3A%SZ")

clean_log
check_pre_cleanup
# Need run pre cleanup before get rrid list
rrid_list=$(query_recordid | get_recordid3)

for each_if in $iface; do
	console_log "Start do interface ddns, current record_id_list:$rrid_list"
	rrid_list=$(do_iface_ddns $each_if)
done